File: vtkGeometryRepresentationWithFaces.h

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/*=========================================================================

  Program:   ParaView
  Module:    vtkGeometryRepresentationWithFaces.h

  Copyright (c) Kitware, Inc.
  All rights reserved.
  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
// .NAME vtkGeometryRepresentationWithFaces
// .SECTION Description
// vtkGeometryRepresentationWithFaces extends vtkGeometryRepresentation to add
// support for rendering back and front faces separately (with different
// visibility and properties).

#ifndef vtkGeometryRepresentationWithFaces_h
#define vtkGeometryRepresentationWithFaces_h

#include "vtkPVClientServerCoreRenderingModule.h" //needed for exports
#include "vtkGeometryRepresentation.h"

class VTKPVCLIENTSERVERCORERENDERING_EXPORT vtkGeometryRepresentationWithFaces : public vtkGeometryRepresentation
{
public:
  static vtkGeometryRepresentationWithFaces* New();
  vtkTypeMacro(vtkGeometryRepresentationWithFaces, vtkGeometryRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent);

  enum RepresentationTypesEx
    {
    FOLLOW_FRONTFACE=400,
    CULL_BACKFACE=401,
    CULL_FRONTFACE=402
    };

  // Description:
  // vtkAlgorithm::ProcessRequest() equivalent for rendering passes. This is
  // typically called by the vtkView to request meta-data from the
  // representations or ask them to perform certain tasks e.g.
  // PrepareForRendering.
  virtual int ProcessViewRequest(vtkInformationRequestKey* request_type,
    vtkInformation* inInfo, vtkInformation* outInfo);

  // Description:
  // Get/Set the visibility for this representation. When the visibility of
  // representation of false, all view passes are ignored.
  virtual void SetVisibility(bool val);

  // Description:
  // Set the backface representation.
  vtkSetClampMacro(BackfaceRepresentation, int, POINTS, CULL_FRONTFACE);
  vtkGetMacro(BackfaceRepresentation, int);

  //***************************************************************************
  // Forwaded to vtkProperty(BackfaceProperty)
  void SetBackfaceAmbientColor(double r, double g, double b);
  void SetBackfaceDiffuseColor(double r, double g, double b);
  void SetBackfaceOpacity(double val);

protected:
  vtkGeometryRepresentationWithFaces();
  ~vtkGeometryRepresentationWithFaces();

  // Description:
  // This method is called in the constructor. If the subclasses override any of
  // the iVar vtkObject's of this class e.g. the Mappers, GeometryFilter etc.,
  // they should call this method again in their constructor. It must be totally
  // safe to call this method repeatedly.
  virtual void SetupDefaults();

  // Description:
  // Adds the representation to the view.  This is called from
  // vtkView::AddRepresentation().  Subclasses should override this method.
  // Returns true if the addition succeeds.
  virtual bool AddToView(vtkView* view);

  // Description:
  // Removes the representation to the view.  This is called from
  // vtkView::RemoveRepresentation().  Subclasses should override this method.
  // Returns true if the removal succeeds.
  virtual bool RemoveFromView(vtkView* view);

  // Description:
  // Passes on parameters to vtkProperty and vtkMapper
  virtual void UpdateColoringParameters();

  vtkMapper* BackfaceMapper;
  vtkMapper* LODBackfaceMapper;
  vtkPVLODActor* BackfaceActor;
  vtkProperty* BackfaceProperty;
  int BackfaceRepresentation;

private:
  vtkGeometryRepresentationWithFaces(const vtkGeometryRepresentationWithFaces&); // Not implemented
  void operator=(const vtkGeometryRepresentationWithFaces&); // Not implemented

};

#endif